Question

Look at the following number pattern
1
2.3 4
5 6 7 8 9
....
(a) Write the next line of this pattern.
(b) Write the sequence of last numbers in each line.
(c) What will be the last number in the 9th line ?
(d) Write the first and last numbers of the 10th line.​

Answer 1

Answer:

           (a) 10 11 12 13 14 15 16

           (b) 1, 4, 9, 16, 25, 36, 49, 64....

           (c) 81

           (d) 82 and 100

Answer 2

Answer:

first boy has send that answer is correct